Heavy-Duty BRP QRS Secondary Clutch Rollers - Set of 2 slip-on 2:1 compression ratio makes the

2:1 compression ratio makes the motor detonation sensor kick on very easily and won’t allow you to lean out the motor for extra power

2021-on Commander

negative R: -1 ~ -30 psi | U: 1 psi

8:1 compression version for sea level to 6000 ft and gains 4-5 HP

This formulation can be used with racing motorcycles

Heavy-Duty BRP QRS Secondary Clutch Rollers - Set of 2 slip-on 2:1 compression ratio makes theHeavy Duty Ski Doo QRS Secondary Clutch Rollers Set of 2 Upgrade your drivetrain's reliability with the Bikeman Performance High Performance Secondary Rollers. Designed specifically for the BRP QRS secondary clutch found in Ski Doo snowmobiles, these rollers are the ultimate insurance policy against trail side failure. Stock rollers are notorious for becoming brittle and shattering under the heat and high impact loads of aggressive riding. Our rollers